I was looking for the same information last year. I never found any kind of "expert" ranking of immigration programs, but I can share with you what I found from my own research. (I decided on NYU for myself.)

Here are some I think are worth looking into, in no particular order:

GeorgetownGeorge WashingtonUC-Hastings (and Davis, as you mentioned)CUNYUniversity of ArizonaCase Western

This isn't an authorititative or exhaustive list, but it's a starting point, at least. Good luck to you!